<template>
    <div class="login_containner">
      <div class="login_box">
        <!--头像区域-->
          <div class="avatar_box">
            <img src="../assets/logo.png" alt="" class="src"/>
          </div>
          <!--登录表单区-->
          <el-form ref="loginFormRef"  class="login_form" :model="loginForm" :rules="loginFormRules">
            <!--用户名-->
            <el-form-item prop="username">
              <el-input prefix-icon="iconfont icon-user"
                        v-model="loginForm.username"></el-input>
            </el-form-item>
            <!--密码-->
            <el-form-item prop="password">
              <el-input type="password" prefix-icon="iconfont icon-password"
                        v-model="loginForm.password"></el-input>
            </el-form-item>
            <!--按钮区域-->
            <el-form-item class="btns">
              <el-button type="primary" @click="login">登录</el-button>
              <el-button type="info" @click="resetLoginForm">重置</el-button>
            </el-form-item>
          </el-form>
      </div>
    </div>
</template>

<script>
export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      //这是表单的验证规则对象
      loginFormRules: {
        // 验证用户名是否合法
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        //验证密码是否合法
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
  //  点击重置按钮
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields()
    },
    login() {
      //模拟登录成功
      this.$message.success('登录成功');
      window.sessionStorage.setItem("token","1234567890");
      this.$router.push('/Home')
      return
      this.$refs.loginFormRef.validate(async valid=>{
        if (!valid) return;
        //http://127.0.01.999/api/login请求地址
        const {data: res}=await  this.$http.post('login',this.loginForm);
        // console.log(res);
        if(res.meta.status != 200) {
          // console.log("登录失败");
          this.$message.error('登录失败');
          return
        }
        this.$message.success('登录成功');
        // console.log("登录成功");
      //  将登录成功之后的token，保存到客户端的sessionStorage中
      //  a、项目中除了登录之外的其他api接口，必须登录之后才能访问
      //  b、token只应在当前网站打开期间生效，所以将token保存在sessionStorage中。
      //  通过编程式导航跳转到后台主页，路由地址是 /Home
        console.log(res);
        window.sessionStorage.setItem("token",res.data.token);
        //跳转到首页页面
        this.$router.push('/Home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
  .login_containner{
    background-color: #2b4b6b;
    height: 100%;
  }

  .login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top:50%;
    transform: translate(-50%,-50%);
  }
  .avatar_box{
    height: 130px;
    width: 130px;
    border:1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left:50%;
    transform: translate(-50%,-50%);
    background-color: #fff;
    img{
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
  .btns{
    display: flex;
    justify-content: flex-end;
  }
  .login_form{
    position: absolute;
    bottom:0;
    width: 100%;
    padding: 20px;
    box-sizing: border-box;
  }
</style>
